Improvement in apparatus for evaporating salt brines



PATENT OFFICE.

CHARLES E5 TRIPLEIt, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN APPARATUS FOR EvAPoRATlNc-z SALT BRINEs, ac;

Specification forming part of Letters Patent No; 13l,721, datedSeptember 24, 1872.

To all whom it may` concern? Be it known that I, CnARLEs E. TRrrLER,

of Bhiladelphia,in the county of Philadelphia and State of Pennsylvania,have invented certain Improvements in Apparatus for Boiling `andEvaporating a Liquor Saturated with a Salt, by means of which apparatus,and the i process thereby effected, the separation of the saline matterfrom the liquor is caused; and I do hereby declare that in the followingspecification of my invention is contained a full,

clear, and exact description-of the same, reference being had-to theaccompanying drawing and to the letters of reference marked thereon;

My invention relates to the apparatus hereinafter described, and to theprocess thereby accomplished whereby common culinary salt, known inchemical nomenclature as muriate of soda or chloride of sodium isseparated vfroma liquor saturated or impregnated with it.

In the accompanying drawing forming a part of this specification, Figurel is a plan view of my improved apparatus. Fig. 2 is a transversesection upon line A B of Fig. 1. Fig. 3 is a similar section upon line BC.

Similar letters of reference indicate similar parts of my invention inallthe ii gures.

A is a steam-boiler, resting upon a suitable foundation. B isabrick-work, serving as a base for certain pans andother parts of theapparatus, hereinafter` described. Of such parts C is a large pan,formed of two sheets of metal, the lower one of l which, c, is fitted toand-covers the greater part of the area of the brick-work B. The uppersheet c constitutes what may be termed a false bottom, and theintervening space between the two sheets a jacket, cy', for the entranceor circulation of i the steam, hereinafter more fully explained.

The pan G terminates longitudinally ateither end in an end pan C', alsoformed of two sheets having a space, constituting a part of theabove-named jacket, between them, which two end pans are set lower inthe brick-work than the center and larger pan G. The upper sheet of thepan C is raised in the center longitudinally thereof,'formin g thesteam-chamber D of two slanting sides, approaching each other as theyrise, and uniting at their apex and two closed ends. These two sides andtwo ends constitute what may be termed a vertical evaporator, andvirtually divide the pan C longitudinally into two parts. Thesteam-jacket c, situated between the several sheets of the pans C and Cand the vertical evaporator D, connects to the steam-space of the boilerby means of the pipe F, which is provided with a cock, f. The dischargeor blow-off pipe F leads from the jacket c. Resting upon the uppersurface of the brickwork B near each outeredge thereof, and parallelthereto, is a perforated pipe, E. The two pipes E connect by the pipes Edirectly with the boiler. The pipes E are also provided with cocks e, bymeans of which the communication between the boiler and the pipes E maybe closed.

While giving a further description of the several parts of my invention,I will also describe the process by which the evaporation of the salineliquor is'eifected and the salt produced. The boiler A is supplied withsaltwater by means of the independent steampump G. The feed-water ispumped through a pipe, g, which extends through the steamjacket e" andreturns, entering the boiler. It will be seen that the boiler issupplied with an inside jacket, H, having two sides and a bottom, but notop. The feed-water is forced into the jacket which incloses the tubesofthe boiler, only a small space being left between their exterior andthe respective sides of the jacket. The feed-water is thus brought andtemporarily confined within a limited part of the whole water-space ofthe boiler, and in which from its close proximity to the heated tubesthe water is more readily heated than it would be by being forced into aboiler unprovided with a jacket. The pressure of steam generated withinthe boiler forces the boiling water, when the cocks are opened, throughthe pipes E into the perforated pipes E. The apertures in the pipes Epoint upward at an angle of sufficient number of degrees to allow theboiling salt-water passing through the perforations to strike againstthe vertical evaporator D, somewhat as is shown in Fig. 2. At the apexof the vertical evaporator is a capping,

d, to each side of which are hinged strips d', capable of being raisedor lowered to any desired angle from the horizontal cap. The spray orcrystallized atoms projected from the slanting sides of the verticalevaporator clingto the strips d in the' form of a pellicle orincrustation, in which form the salt is collected in quantities deemedsuflicient, when it is re-` moved by scraping or other means, in acondition wt for culinary purposes. It will be seen, and it has beenherein stated, that the end pan C is set lower in the brick-Work thanthe pan C. This arrangement, as the ends of the bottom of the pan C arerounding and lead into the pan C', allows the liquid to drain 0E fromthe pan C into the end pan C', leaving a saline deposit upon the surfaceof the pan C. The salt may then be removed in the same condition and inthe same manner as that from the Wooden strips d. The boiler A isprovided with suitable salt-traps and pipes, by means of whih it may berelieved of the deposit if Salt 0r Which. met' be. est@ for commonblow-oli purposes.

Having thus described my invention, what I claim as new, and wish tosecure by Letters Patent, is-

